CN105157782B - Material heap level measuring system based on laser ranging technique - Google Patents
Material heap level measuring system based on laser ranging technique Download PDFInfo
- Publication number
- CN105157782B CN105157782B CN201510533111.3A CN201510533111A CN105157782B CN 105157782 B CN105157782 B CN 105157782B CN 201510533111 A CN201510533111 A CN 201510533111A CN 105157782 B CN105157782 B CN 105157782B
- Authority
- CN
- China
- Prior art keywords
- driving motor
- material heap
- data
- control box
- measurement unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a kind of material heap level measuring systems based on laser ranging technique that can accurately measure object material stack volume and quantity.Holder need to be only fixed on the top in material heap warehouse by the material heap level measuring system based on laser ranging technique when in use, then material heap warehouse is scanned by laser range finder, the angle during measurement of angle measurement unit record simultaneously, laser range finder, the data that angle measurement unit measures send pc client and data receiver memory module to by data transmitting module, pc client carries out the volume and quantity of material heap measured by Data Integration calculating, and it sends result of calculation to data receiver memory module and stores, personnel are conveniently operated to implement to check data, the shape of material heap can be accurately measured using laser scanning and ranging, and then object material stack volume and quantity can be accurately measured, and entire measurement process is automatically performed, it is time saving and laborsaving.It is suitble to promote and apply in material heap fields of measurement.
Description
Technical field
The present invention relates to material heap fields of measurement, especially a kind of material heap position measurement system based on laser ranging technique
System.
Background technology
Since research cement of British scientist J.Aspdin in 1824 and patented, cement is just widely used.Cement
Be it is a kind of can in exposed air natural coagulation inorganic material, have that hardness is high, high temperature resistant, storage time length etc. is many excellent
Point.It is very huge in the application range and usage amount of contemporary society's cement that industry drastically develops, as the important of economic development
Basic supplies, from the point of view of the direction of development in science and technology, there are no other materials after following many years can replace its effect.Water
Mud is obtained for as many fields of important raw and processed materials of economic construction and is widely applied, and such as building, highway, bridge, underground leads to
Road, harbour etc..More in addition the cement with specific function is scientific and technological also in national defence, has special ground in special engineering
Position.Cement is the basic producer goods of nation-building, and demand is big.The cost of raw material of cement accounts for the 70% of entire cost
More than.To reduce cement cost, it is necessary to its volume of raw material and quantity are accurately measured, because of warehouse bulky, and in warehouse
The raw material volume moment is changing, and many difficulties are caused for manual measurement, it is difficult to appropriately estimate.The accurate survey of large material stack position
It is irregular that measurer has material to stack, and puts the characteristics of scattered, this is to be difficult to the technical barrier captured always for many years.With cement
Exemplified by factory, most distinct issues are exactly the problem of material storage measures, and it is the important of cement plant management to carry out warehousing management
One of work.Cement heap position measurement technology is difficult to reach automatic monitoring degree always, in most of cement plant, the measurement of heap position
It is main still to be measured in artificial method into shape.Such as weigh, it is manually regular the methods of, need to probably be estimated, be consumed big
The manpower and materials of amount, and measurement accuracy is not high.Furthermore cement slurry and bin area because of its relative closure, be manually more difficult into
Row relatively accurately measures, and can only vertically downward be stretched by simple rope, and after touching material, rule of thumb shape carries out
Estimation, this method have largely influenced the normal output assessment of enterprise.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of can accurately measure object material stack volume and quantity based on
The material heap level measuring system of laser ranging technique.
The technical solution adopted by the present invention to solve the technical problems is:The material heap position based on laser ranging technique is surveyed
Amount system, including data measurin system, data receiver memory module and pc client, the data measurin system includes at least three
A holder, the holder are arranged on the top in material heap warehouse, laser range finder are both provided on each holder, angle is surveyed
Amount device and data transmitting module, the laser range finder, angle measurement unit are connected respectively with data transmitting module, Laser Measuring
The data that distance meter, angle measurement unit measure send pc client to by data transmitting module and data receiver stores mould
Block, the data receiver memory module are connected with pc client.
It is further that the quantity of the holder is three, the angle between the line of the two neighboring holder is
120 degree.
It is further that the data receiver memory module is MySql databases.
It is further that the holder includes control box, and controller, the first driving motor are provided in the control box,
First driving motor is connected with controller, and the output shaft of first driving motor is vertically arranged and passes through the bottom of control box
Portion is extended to outside control box, and the end of first driving motor output shaft is fixed with suspension bracket, when the first driving motor turns
When dynamic, suspension bracket is rotated around the output shaft of the first driving motor, and the second driving motor, institute are provided in the suspension bracket
It states the second driving motor with controller to be connected, the output shaft of second driving motor is horizontally disposed with, second driving motor
Output the tip of the axis is fixed with equipment compartment, and when the second driving motor rotates, equipment compartment surrounds the output shaft of the second driving motor
Rotation, the laser range finder are arranged in equipment compartment, and the equipment compartment is provided with measured hole, and the angle measurement unit is set
On equipment compartment surface.
It is further that the angle measurement unit is by acceleration transducer, gyroscope, electronic compass sensor composition.
It is further that the control box bottom is provided with to limit the limiting device of suspension bracket rotation, the limit
Position device includes the first limit switch, the second limit switch that are arranged on control box bottom, and arc groove is provided in control box bottom,
The center of arc of the arc groove is located on the axial line of the first driving motor output shaft, first the second limit switch of limit switch
Positioned at the both ends of arc groove, sliding block is provided in arc groove, drive rod is connected on the sliding block, the drive rod passes through shaft
Control box bottom is fixed on, block is provided in the suspension bracket, between the upper surface of the block and control box bottom
Distance is less than the distance between lower surface and control box bottom of sliding block.
It is further that hatch door is provided at the measured hole of the equipment compartment, is provided with to be opened and closed on the equipment compartment
3rd driving motor of hatch door.
It is further to be provided with clump weight in the suspension bracket.
It is further that first driving motor, the second driving motor, the 3rd driving motor are deceleration stepping electricity
Machine, the reduction ratio of first driving motor is 1:50, the reduction ratio of the second driving motor is 1:10.
The beneficial effects of the invention are as follows:The material heap level measuring system based on laser ranging technique only need when in use by
Holder is fixed on the top in material heap warehouse, and then material heap warehouse is scanned by laser range finder, while angle is surveyed
Angle during device record measurement is measured, the data that laser range finder, angle measurement unit measure are transmitted by data transmitting module
To pc client and data receiver memory module, pc client carries out the volume sum number of material heap measured by Data Integration calculating
Amount, and sends result of calculation to data receiver memory module and stores, and the personnel that are conveniently operated implement to check data, using swashing
Optical scanning ranging can accurately measure the shape of material heap, and then can accurately measure object material stack volume and quantity, and
And entire measurement process is automatically performed, and has saved substantial amounts of labour, and it is time saving and laborsaving, in addition, staff can pass through PC visitors
Family end query interface real time inspection related data, including time, volume, warehouse number and stereo-picture etc..
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structure diagram of the material heap level measuring system of the present invention based on laser ranging technique;
Fig. 2 is the structure diagram of holder of the present invention;
Fig. 3 is the structure diagram of limiting device of the present invention;
Reference sign:Control box 1, the first driving motor 2, suspension bracket 3, the second driving motor 4, equipment compartment 5, swash
Optar 6, clump weight 8, acceleration transducer 9, gyroscope 10, electronic compass sensor 11, limiting device 12, the first /V
Switch the 1201, second limit switch 1202, arc groove 1203, sliding block 1204, drive rod 1205, block 1206, hatch door the 13, the 3rd
Driving motor 14.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts belong to the scope of protection of the invention.
As shown in Figure 1, the material heap level measuring system based on laser ranging technique is somebody's turn to do, including data measurin system, data
Memory module and pc client are received, the data measurin system includes at least three holders, and the holder is arranged on material heap
The top in warehouse is both provided with laser range finder, angle measurement unit and data transmitting module on each holder, described to swash
Optar, angle measurement unit are connected respectively with data transmitting module, the data that laser range finder, angle measurement unit measure
Pc client and data receiver memory module, the data receiver memory module and PC visitors are sent to by data transmitting module
Family end is connected.Holder only need to be fixed on material heap storage by the material heap level measuring system based on laser ranging technique when in use
Then the top in storehouse is scanned material heap warehouse by laser range finder, while during angle measurement unit record measurement
Angle, the data that laser range finder, angle measurement unit measure send pc client and data to by data transmitting module
Memory module is received, pc client carries out the volume and quantity of material heap measured by Data Integration calculating, and result of calculation is passed
It gives data receiver memory module to be stored, the personnel that are conveniently operated implement to check data, can essence using laser scanning and ranging
The true shape for measuring material heap, and then object material stack volume and quantity can be accurately measured, and also entire measurement process is certainly
It is dynamic to complete, substantial amounts of labour has been saved, it is time saving and laborsaving, in addition, staff can be real-time by pc client query interface
Related data is checked, including time, volume, warehouse number and stereo-picture etc..
In the above-described embodiment, in order to realize the comprehensive scanning of materials warehouse, measuring accuracy, while maximum are improved
The control cost of limit, the quantity of the holder is is preferably three, and the folder between the line of the two neighboring holder
Angle is 120 degree, so only needs three holders that can realize the comprehensive scanning to materials warehouse.
It is described in order to realize the preservation of big data since the data volume that laser range finder, angle measurement unit measure is larger
Data receiver memory module is MySql databases.
In addition, existing various cradle head structures may be employed in the holder, in order to improve measurement accuracy, the present invention provides
A kind of preferred scheme:As shown in Fig. 2, the holder includes control box 1, controller, the first drive are provided in the control box 1
Dynamic motor 2, first driving motor 2 are connected with controller, and the output shaft of first driving motor 2 is vertically arranged and passes through
The bottom of control box 1 is extended to outside control box 1, and first driving motor 2 exports the tip of the axis and is fixed with suspension bracket 3, when
When first driving motor 2 rotates, suspension bracket 3 is rotated around the output shaft of the first driving motor 2, is set in the suspension bracket 3
The second driving motor 4 is equipped with, second driving motor 4 is connected with controller, and the output shaft of second driving motor 4 is horizontal
It setting, second driving motor 4 exports the tip of the axis and is fixed with equipment compartment 5, when the second driving motor 4 rotates, equipment compartment 5
Output shaft around the second driving motor 4 rotates, and the laser range finder 6 is arranged in equipment compartment 5, the angle measurement unit
It is arranged on 5 surface of equipment compartment.The cradle head structure is simple, can realize the horizontal direction in xoy planes>360 ° of rotation is realized
- 90 ° of rotations to+90 degree of vertical direction in xoz planes.
Measurement rotation angle in order to be more accurate, the angle measurement unit by acceleration transducer 9, gyroscope 10,
Electronic compass sensor 11 forms.
It is further that 1 bottom of control box is provided with to limit the limiting device 12 of the rotation of suspension bracket 3, such as
Shown in Fig. 3, the limiting device 12 includes the first limit switch 1201, the second limit switch that are arranged on 1 bottom of control box
1202, it is provided with arc groove 1203 in 1 bottom of control box, it is defeated that the center of arc of the arc groove 1203 is located at the first driving motor 2
On the axial line of shaft, 1,201 second limit switch 1202 of the first limit switch is located at the both ends of arc groove 1203, arc groove
Sliding block 1204 is provided in 1203, drive rod 1205 is connected on the sliding block 1204, the drive rod 1205 is consolidated by shaft
1 bottom of control box is scheduled on, block 1206, upper surface and 1 bottom of control box of the block 1206 are provided in the suspension bracket 3
The distance in portion is less than the distance of 1204 lower surface of sliding block and 1 bottom of control box.By being provided with to limit in 1 bottom of control box
The limiting device 12 that suspension bracket 3 rotates, can realize to the controllable of 3 turned position of suspension bracket, can both determine suspension support
The actual rotation position of frame 3, while can also realize prevents holder from continuously rotating to itself causing irreversible damage, in addition,
When the block 1206 in suspension bracket 3 touches sliding block 1204, if sliding block 1204 not with the first limit switch 1201 or the
Two limit switches 1202 contact, and at this time the rotation of suspension bracket 3 can't be caused to limit, and only suspension bracket 3 is rotated further,
Block 1206 promote sliding block 1204 along sliding slot slide into the first limit switch 1201 or the second limit switch 1202 when, can just trigger
Limit switch is sent out, such a construction ensures suspension brackets 3 can rotate the purpose more than 360 °, so that measurement is more accurate.
In industrial environment, dust is more serious, and dust easily enters from measured hole in equipment compartment 5, and dust enters equipment
Cabin 5 can cover the camera lens of laser range finder 6, and then cause dysmetria is true to happen, in order to prevent the above situation
Occur, be provided with hatch door 13 at the measured hole of the equipment compartment 5, be provided with to be opened and closed the of hatch door 13 on the equipment compartment 5
Three driving motors 14.When needing to measure, by the way that the 3rd driving motor 14 is controlled to open hatch door 13, after measurement, then
Hatch door 13 is closed using the 3rd driving motor 14, since the working time of laser range finder 6 is shorter, the short time is exposed to the external world
Too many dust will not be contacted, can so effectively reduce the probability that the camera lens of laser range finder 6 and dust contact, ensures to survey
Away from accuracy.
Since the installation of the second driving motor 4 and the 3rd driving motor 14 is not symmetrically installed, suspension bracket 3 in order to prevent
Unbalance loading damages the first driving motor 2 when suspension bracket 3 rotates, and clump weight 8 is provided in the suspension bracket 3, uses
Equilibrium state is in making suspension bracket 3.
For the ease of control, control accuracy, first driving motor 2, the second driving motor the 4, the 3rd driving electricity are improved
Machine 14 is decelerating step motor, and the reduction ratio of first driving motor 2 is 1:50, the reduction ratio of the second driving motor 4 is
1:10。
Claims (4)
1. the material heap level measuring system based on laser ranging technique, it is characterised in that:Including data measurin system, data receiver
Memory module and pc client, the data measurin system include at least three holders, and the holder is arranged on material heap warehouse
Top, be both provided with laser range finder, angle measurement unit and data transmitting module, the Laser Measuring on each holder
Distance meter, angle measurement unit are connected respectively with data transmitting module, and the data that laser range finder, angle measurement unit measure pass through
Data transmitting module sends pc client and data receiver memory module, the data receiver memory module and pc client to
It is connected, the quantity of the holder is three, and the angle between the line of the two neighboring holder is 120 degree, the data
Reception memory module is MySql databases, and the holder includes control box (1), be provided in the control box (1) controller,
First driving motor (2), first driving motor (2) are connected with controller, and the output shaft of first driving motor (2) erects
Straight to set and extend to control box (1) outside through the bottom of control box (1), first driving motor (2) exports the tip of the axis
Suspension bracket (3) is fixed with, when the first driving motor (2) rotates, suspension bracket (3) is defeated around the first driving motor (2)
Shaft rotates, and the second driving motor (4), second driving motor (4) and controller phase are provided on the suspension bracket (3)
Even, the output shaft of second driving motor (4) is horizontally disposed with, and the second driving motor (4) output the tip of the axis is fixed with
Equipment compartment (5), when the second driving motor (4) rotates, equipment compartment (5) is rotated around the output shaft of the second driving motor (4), institute
It states laser range finder (6) to be arranged in equipment compartment (5), the equipment compartment (5) is provided with measured hole, and the angle measurement unit is set
It puts on equipment compartment (5) surface, the angle measurement unit is by acceleration transducer (9), gyroscope (10), electronic compass sensor
(11) form, control box (1) bottom is provided with to limit the limiting device (12) of suspension bracket (3) rotation, the limit
Position device (12) includes the first limit switch (1201), the second limit switch (1202) that are arranged on control box (1) bottom, is controlling
Box (1) bottom processed is provided with arc groove (1203), and the center of arc of the arc groove (1203) is located at the first driving motor (2) output
On the axial line of axis, (1201) second limit switch (1202) of the first limit switch is located at the both ends of arc groove (1203), arc
Sliding block (1204) is provided in slot (1203), drive rod (1205), the drive rod are connected on the sliding block (1204)
(1205) control box (1) bottom is fixed on by shaft, block (1206), the block is provided on the suspension bracket (3)
(1206) the distance between upper surface and control box (1) bottom are less than the lower surface of sliding block (1204) and control box (1) bottom
The distance between.
2. the material heap level measuring system based on laser ranging technique as described in claim 1, it is characterised in that:The equipment
Hatch door (13) is provided at the measured hole in cabin (5), is provided with to be opened and closed the 3rd driving of hatch door (13) on the equipment compartment (5)
Motor (14).
3. the material heap level measuring system based on laser ranging technique as claimed in claim 2, it is characterised in that:The suspension
Clump weight (8) is provided on bracket (3).
4. the material heap level measuring system based on laser ranging technique as claimed in claim 3, it is characterised in that:Described first
Driving motor (2), the second driving motor (4), the 3rd driving motor (14) are decelerating step motor, first driving motor
(2) reduction ratio is 1:50, the reduction ratio of the second driving motor (4) is 1:10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510533111.3A CN105157782B (en) | 2015-08-26 | 2015-08-26 | Material heap level measuring system based on laser ranging technique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510533111.3A CN105157782B (en) | 2015-08-26 | 2015-08-26 | Material heap level measuring system based on laser ranging technique |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105157782A CN105157782A (en) | 2015-12-16 |
CN105157782B true CN105157782B (en) | 2018-05-22 |
Family
ID=54798721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510533111.3A Expired - Fee Related CN105157782B (en) | 2015-08-26 | 2015-08-26 | Material heap level measuring system based on laser ranging technique |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105157782B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105758308B (en) * | 2016-03-24 | 2018-05-01 | 大唐环境产业集团股份有限公司 | A kind of laser coal estimating device and disk coal method |
CN106291577B (en) * | 2016-10-13 | 2019-04-05 | 上海思岚科技有限公司 | A kind of scanning distance measuring sensor |
CN107450467A (en) * | 2017-09-28 | 2017-12-08 | 杭州纳戒科技有限公司 | Box for material circulation monitoring system and logistics monitoring system |
CN108332655A (en) * | 2017-12-28 | 2018-07-27 | 顺丰科技有限公司 | A kind of laser measuring device for measuring and measurement method |
CN110793592A (en) * | 2019-11-27 | 2020-02-14 | 西南交通大学 | Device and method for detecting sand level of sand box of railway vehicle |
CN112378474B (en) * | 2020-11-17 | 2022-11-04 | 哈尔滨工业大学 | Large length-diameter ratio horizontal tank volume multi-station three-dimensional laser scanning internal measurement device and method |
CN114683234B (en) * | 2022-05-09 | 2023-07-18 | 中国石油大学(华东) | Automatic device for rapidly measuring and drawing lines of pipeline fire |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5615133A (en) * | 1993-12-10 | 1997-03-25 | Socetec | Method and device for storing transaction data |
CN201193946Y (en) * | 2008-04-07 | 2009-02-11 | 成都智远科技有限公司 | Sand and stone volume measuring instrument |
CN201425503Y (en) * | 2009-06-10 | 2010-03-17 | 北京中盛博方环保工程技术有限公司 | Miscellaneous material pile measuring system |
CN102102988A (en) * | 2009-12-22 | 2011-06-22 | 中国农业科学院农业环境与可持续发展研究所 | Method, system and device for measuring crop yield information in real time |
CN102722157A (en) * | 2012-06-24 | 2012-10-10 | 福建汇川数码技术科技有限公司 | Remote real-time monitoring device based on high-precision cradle head |
CN102853875A (en) * | 2012-10-06 | 2013-01-02 | 南京大五教育科技有限公司 | Measuring method for storage capacity of reservoir |
CN103308111A (en) * | 2013-01-31 | 2013-09-18 | 王录民 | Device for measuring volume of bulk material pile |
CN104534986A (en) * | 2014-12-22 | 2015-04-22 | 华北水利水电大学 | Material yard material measuring system based on laser measurement technology |
KR101576583B1 (en) * | 2014-11-28 | 2015-12-11 | 에너시스(주) | Method and Apparatus for Stock Pile Scanning by Position Measurement of Stacker |
CN204988418U (en) * | 2015-08-26 | 2016-01-20 | 西南交通大学 | Bank position measurement system based on laser rangefinder technique |
-
2015
- 2015-08-26 CN CN201510533111.3A patent/CN105157782B/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5615133A (en) * | 1993-12-10 | 1997-03-25 | Socetec | Method and device for storing transaction data |
CN201193946Y (en) * | 2008-04-07 | 2009-02-11 | 成都智远科技有限公司 | Sand and stone volume measuring instrument |
CN201425503Y (en) * | 2009-06-10 | 2010-03-17 | 北京中盛博方环保工程技术有限公司 | Miscellaneous material pile measuring system |
CN102102988A (en) * | 2009-12-22 | 2011-06-22 | 中国农业科学院农业环境与可持续发展研究所 | Method, system and device for measuring crop yield information in real time |
CN102722157A (en) * | 2012-06-24 | 2012-10-10 | 福建汇川数码技术科技有限公司 | Remote real-time monitoring device based on high-precision cradle head |
CN102853875A (en) * | 2012-10-06 | 2013-01-02 | 南京大五教育科技有限公司 | Measuring method for storage capacity of reservoir |
CN103308111A (en) * | 2013-01-31 | 2013-09-18 | 王录民 | Device for measuring volume of bulk material pile |
KR101576583B1 (en) * | 2014-11-28 | 2015-12-11 | 에너시스(주) | Method and Apparatus for Stock Pile Scanning by Position Measurement of Stacker |
CN104534986A (en) * | 2014-12-22 | 2015-04-22 | 华北水利水电大学 | Material yard material measuring system based on laser measurement technology |
CN204988418U (en) * | 2015-08-26 | 2016-01-20 | 西南交通大学 | Bank position measurement system based on laser rangefinder technique |
Also Published As
Publication number | Publication date |
---|---|
CN105157782A (en) | 2015-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105157782B (en) | Material heap level measuring system based on laser ranging technique | |
CN104596459B (en) | Landslide Forecast System and its monitoring method | |
CN105841629A (en) | Photogrammetry monitoring system for monitoring inclination and sedimentation of cultural building relics | |
CN103308111B (en) | A kind of measurement mechanism of volume of bulk material pile | |
CN203298721U (en) | Granary capacity real-time monitoring system | |
CN205785177U (en) | A kind of high-rise building uniform settlement and Non-uniform Settlement monitoring device | |
CN104344811B (en) | A kind of gas chamber piston gradient on-line detecting system and method | |
CN103940403B (en) | Method, device and system for measuring pitching angle of cantilever crane and movable arm tower crane | |
CN107643072A (en) | A kind of bridge construction line style real-time monitoring device and method | |
CN206944987U (en) | Construction wall testing apparatus for verticality | |
CN204988418U (en) | Bank position measurement system based on laser rangefinder technique | |
CN103759706A (en) | Three-dimensional measurement method and measurement device for mine draw shaft | |
CN108151701A (en) | The remote supervision system of building deformation | |
CN206818148U (en) | A kind of intelligent multi-function chi for building | |
CN209197798U (en) | A kind of middle and small river water quality-flow quantity intelligent monitoring station | |
CN210486871U (en) | Beach section form evolution real-time measuring device | |
CN207649643U (en) | A kind of fixing device for engineering detecting | |
CN201687014U (en) | Pile hole quality detector | |
CN105091773B (en) | Detection means for forklift door frame deflection metrology | |
CN110763196A (en) | Beach section form evolution real-time measuring device and method | |
CN208721070U (en) | A kind of horizontal vertical measuring device of high level armored concrete wall | |
CN109612533A (en) | A kind of middle and small river water quality-flow quantity intelligent monitoring station and monitoring method | |
CN106643605B (en) | Door body level jump real-time monitoring device and its monitoring method under ship gateway operation state | |
CN105039621A (en) | Burden surface profile measurement method for blast furnace | |
CN209605807U (en) | One kind hanging ruler |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20210826 |